MCP security advisories

Monthly roundups of published advisories for tested MCP server listings, from OSV.dev and GitHub advisories. This is not a security audit.

Monthly roundups

• October 2026: 23 advisories across 6 listings; results: 3 in range, 21 not in range, 1 not applicable.

Each tool page has a Known security issues section showing whether the tested version is in an advisory's affected range. Method: how we check advisories.